The barcode 4260696733729 is linked in Core to a Bluray Disc Thunderbirds Volume 1.
The version I just bought is a DVD Box containing 6 DVD and the whole Series. It should more accurately be linked to the Thunderbirds: The Complete Series (CoreMovie ID 128651) and have an separate Core Media ID.
Thank you for reporting.
I’ve assigned the reported barcode to the correct series collection.